<template>
  <div class="home-brand" ref="target">
    <XtxPanel title="热门品牌" subTitle="国际经典 品质保证">
      <template #right>
        <div class="right">
          <a :class="{ disabled: index === 0 }" @click="toggle(-1)" href="javascript:;" class="iconfont icon-angle-left prev"></a>
          <a :class="{ disabled: index === 1 }" @click="toggle(1)" href="javascript:;" class="iconfont icon-angle-right next"></a>
        </div>
      </template>

      <div class="box">
        <ul v-if="brands.length" class="list" :style="{ transform: `translateX(${ -1240 * index }px)`}">
          <li v-for="item in brands" :key="item.id">
            <RouterLink to="/">
              <img :src="item.picture" alt="">
            </RouterLink>
          </li>
        </ul>
        <div class="skeleton-list">
          <XtxSkeleton v-for="i in 5" :key="i" width="240px" height="305px" bg="#e4e4e4" class="item" animate="d2"></XtxSkeleton>
        </div>
      </div>
    </XtxPanel>
  </div>
</template>

<script setup>
import { ref } from 'vue'
import { findBrand } from '@/api/home'
import { useLazyData } from '@/hooks'

// 当前页面
const index = ref(0)

// 懒加载数据
const { target, result: brands } = useLazyData(() => findBrand(10))

// 切换品牌
const toggle = (step) => {
  const newIndex = index.value + step
  // 当页码小于0 大于1 就不做操作了
  if (newIndex < 0 || newIndex > 1) return
  index.value = newIndex
}

</script>

<style lang="scss" scoped>
.xtx-panel {
  background-color: #f5f5f5;
}
.iconfont {
  width: 20px;
  height: 20px;
  background: #ccc;
  color: #fff;
  display: inline-block;
  text-align: center;
  margin-left: 5px;
  background: $xtxColor;
  &::before {
    font-size: 12px;
    position: relative;
    top: -2px
  }
  &.disabled {
    background: #ccc;
    cursor: not-allowed;
  }
}
.box {
  display: flex;
  width: 100%;
  height: 345px;
  overflow: hidden;
  padding-bottom: 40px;
  .list {
    width: 200%;
    display: flex;
    transition: all 1s;
    li {
      margin-right: 10px;
      width: 240px;
      &:nth-child(5n) {
        margin-right: 0;
      }
      img {
        width: 240px;
        height: 305px;
      }
    }
  }
}
.skeleton-list {
  width: 100%;
  display: flex;
  .item {
      margin-right: 10px;
      &:nth-child(5n) {
        margin-right: 0;
      }
  }
}
</style>
